Pitch X is a free iPhone app developed by Xappox LLC. It is designed for baseball coaches and parents to effortlessly keep track of their players' pitch count. The app allows you to keep track of up to 3 players before asking for a one-time purchase to keep track of unlimited players.

For high school and youth leagues, Pitch X now has built-in support for pitch restrictions, including the Pitch Smart rules and every state's high school restrictions (excluding Massachusetts, Montana, South Dakota, and Wyoming). This feature is unlockable with an annual subscription.

Pitch X is developed part-time by Evan Dekhayser, who appreciates all of your support and looks forward to your comments and feedback. The app is not affiliated or associated with the MLB or any high school or college sports association.

Overall, Pitch X is a great tool for baseball coaches and parents who want to keep track of their players' pitch count. The app is easy to use and provides useful information about pitch restrictions. However, the subscription-based pitch rules tool may be a turn-off for some users.